Droga5 won the top prize, the Grandy Award, at the International Andy Awards on Thursday night for its work on Thunderclap, a "crowdspeaking" platform.

The agency's De-De innovation lab conceived the platform, which lets users create a campaign with a message and then invite their personal networks to support it, but Thunderclap is now operating as its own business. Organizations using Thunderclap include The White house, One.org, the United Nations and Human Rights Watch.

The awards, which are presented annually by The Ad Club of New York, this year included new "Bravery Awards" intended to mark the Andys' 50th anniversary. The "Bravest Legacy Marketer" award was bestowed on Volkswagen for "Think Small" and other campaigns. Chipotle received "Bravest Current Marketer."

"To now acknowledge the role bravery plays in the creative process adds dimension and purpose to our mission and highlights what makes an idea a truly great idea that is sustainable," Gina Grillo, president-CEO at The Ad Club of New York, said in a statement.

Barton F. Graf 9000 won this year's Richard T. O'Reilly Award for Outstanding Public Service Campaign, which comes with a $10,000 donation to the charity, for "Climate Name Change" for 350 Action.

Top agencies walking away with multiple awards included Leo Burnett, which won 10 Andys, including four Golds, for work including "Small World Machines" for Coke (Sydney), Jeep's "Trailers" (France) and Fiat campaigns via Tailor Made in Brazil.

Wieden & Kennedy also won 10 awards, four of which were Gold, for work including Old Spice's "Momsong," P&G's "Pick Them Back Up," and Honda "Hands."

Droga5 New York won five Golds along with its Grandy, for work including Newcastle's "If We Made It" and Prudential's "Challenge Lab."

Forsman & Bodenfors continued to collect the bling for its Volvo Trucks campaign, including four Golds for "The Epic Split" film and the overall "Live Test Series." Earlier this month, it helped propel the agency to the top at the ADC awards.

A total of 86 medals were awarded, including 33 Golds. See a full list of winners here.